html&javascript:

<button id="start">start to ping</button>

<script>
    $(function () {
        $('#start').on('click', function () {
            pingIP();
            setInterval(pingIP, 5000);
        })
    })

    function pingIP() {
        $.ajax({
                type: "POST",
                url: '@Url.Action("pingIP")',
                contentType: "application/json; charset=utf-8",
                success: function (response) {
                if (response) { 
                    console.log("Ping successfully.");
                }
                else
                    console.log("Ping failed.");
                },
                error: function () {
                    console.log("function failed.");
                }
            });
    }
</script>

code behind:

[HttpPost]
        public bool PingIP()
        {
            bool pingable = false;
            Ping pingSender = new Ping();
            PingReply reply = pingSender.Send("your tagert IP address");
            pingable = reply.Status == IPStatus.Success;
            if (pingSender != null)
            {
                pingSender.Dispose();
            }
            return pingable;
        }